It also leads to overthinking. You could simulate several long conversations based on wrong assumptions, resulting in wrong conclusions and probably some anxiety.

It also makes it harder to deal with you because only you can react based on those long analyses, everybody else has to react based on your actions.

Definitely but my partner will probably disagree; I've played devil's advocate way too many times for her liking.

It's helpful for simulating different thoughts and feelings from different viewpoints in real or imagined scenarios. It doesn't grant super-empathic powers of comforting, or mirroring feelings in the moment. Moreso it hinders my ability to mirror emotions because I'm dont live "in the moment" as much.